Vulnerability-Lookup

CVE-2026-58066 (GCVE-0-2026-58066)

Vulnerability from cvelistv5 – Published: 2026-07-30 06:03 – Updated: 2026-07-31 03:55

Summary

Rocket.Chat's SAML SSO before versions 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, and 7.10.14 verified XML signatures but did not bind the validated signature to samlp:Response / saml:Assertion. An attacker could submit a wrapped document carrying forged identity attributes alongside any valid signature made by the trusted IdP certificate, and log in as an arbitrary user.

Severity

9.8 (Critical)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-287 - Improper Authentication - Generic

Assigner

hackerone

References

2 references

URL	Tags
https://hackerone.com/reports/3827674
https://github.com/RocketChat/Rocket.Chat/pull/41233

Impacted products

1 product

Vendor	Product	Version
Rocket.Chat	Rocket.Chat	Affected: 0 , < 8.7.0 (semver) Affected: 0 , < 8.6.1 (semver) Affected: 0 , < 8.5.2 (semver) Affected: 0 , < 8.4.5 (semver) Affected: 0 , < 8.3.7 (semver) Affected: 0 , < 8.2.7 (semver) Affected: 0 , < 8.1.7 (semver) Affected: 0 , < 8.0.8 (semver) Affected: 0 , < 7.10.14 (semver)

Credits

jayden (0jayden)

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-58066",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-30T00:00:00+00:00",
                "version": "2.0.3"
              },
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          "shortName": "CISA-ADP"
        },
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      }
    ],
    "cna": {
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        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
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          }
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      "problemTypes": [
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        {
          "url": "https://github.com/RocketChat/Rocket.Chat/pull/41233"
        }
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  "cveMetadata": {
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    "datePublished": "2026-07-30T06:03:45.178Z",
    "dateReserved": "2026-06-28T15:00:00.719Z",
    "dateUpdated": "2026-07-31T03:55:47.931Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "epss": "0.00209",
      "percentile": "0.11264"
    },
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    "vulnrichment": {
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}

GHSA-F3WJ-PR2W-Q3FM

Vulnerability from github – Published: 2026-07-30 06:32 – Updated: 2026-07-30 06:32

Details

Severity

9.8 (Critical)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-58066"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-30T06:25:55Z",
    "severity": "CRITICAL"
  },
  "details": "Rocket.Chat\u0027s SAML SSO before versions 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, and 7.10.14 verified XML signatures but did not bind the validated signature to samlp:Response / saml:Assertion. An attacker could submit a wrapped document carrying forged identity attributes alongside any valid signature made by the trusted IdP certificate, and log in as an arbitrary user.",
  "id": "GHSA-f3wj-pr2w-q3fm",
  "modified": "2026-07-30T06:32:37Z",
  "published": "2026-07-30T06:32:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58066"
    },
    {
      "type": "WEB",
      "url": "https://github.com/RocketChat/Rocket.Chat/pull/41233"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/3827674"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-58066 (GCVE-0-2026-58066)

GHSA-F3WJ-PR2W-Q3FM

Tags

Sightings

Nomenclature